Improvement in the manufacture op glue



` lnitrd gime at eine Letters Patent No. 106,448, dated August 16,1870.

The Schedule referred to in these Letters Patent and. making part ofthe'same.

l, WILLIAM ADAMSON, of Philadelphia, county of Philadelphia, `State ofPennsylvania, have invented an Improvement in the Manufacture of Glue,and apparatus for the same, of which the following isa specification..

Nature and Object of the I I wcntion.

My invention consists in the production of sheets of gelatinized size,by causing fluid or semiffluiil size to.tra\erse either with a cylinderor with ali endless apron whileexposed to the air.

`My invention further consists of certain mechanism and apparatus forihr-ming the 'said sheets, cooling the size, hardening the sheets, andsevering the Sallie, thesaid mechanism `and apparatus being too fullyexplained hereafter 'to need' a' preliminary explanation.

The object of my invention is, economy in the manufacture of glue, bysubstituting for the manipulative operations heretofore practicedautomatic labor-saving'processes and mechanism.

Description of the Accompanying Drawing.

fication of my invention.

General Description. A is a hollow cylinder, the tubular journalslt anda of which are caused to revolve in suitable standvaids or frames B B.Beneath this cylyinder is a trough, on the bottom of which is placed apipe, D, arranged in the manner shown inv iig. 4 or in coils, or in an'yother manner which will insure. the exposure of as much pipe surface asis possible or convenient to the contents ofthe trough.

Both ends. d and d', of this pip project through one end of the trough,the end (l ibeing continued through the tubular journal a of thecylinder A, and so. far into the interior of `the latter as to extendnearly to the bottom o t the cylinder. This continuation, d, of the pipeD, should be furnished with a cock, e, and the continuation, d', of thesaid pipe D, should ,communicate with a pump or vother exhaustingapparatus, which it has not been deemed neces- -sary to illustrate inthe drawing.

ln suitable frames, E, turn two rollers, f f', round which passes auendless apron, F, of wire gauze, the

roller f' being so situated that the apron traverses as near to thecylinder-A as possible without being in absolute contact with it.

In frames G G, arranged inline with the frames E E, revolve threerollers, H, H, and H', and round the .two former rollers passes anendless apron, I, of suitable material, and directly abovethe Vcenterroller and the said frames G G turns a shaft, 71:, in whichare two diskswith radial arms, one disk near each end ofthe shaft, the arms of onedisk being connected to those ofthe opposite disk by wires m m, for apurpose described hereafter.

Between the rollers H and f is a cross-bur, n, from which projectvertical wires p, arranged at equal distances apart, as shown in iig. 2.

The cylinder A is partially filled with salt and ice, or other freezingmixture, and iscaused' to revolve slowly in the direction of the arrow,while the end less'aprons F and I are caused to traverse in thedirection of their arrows at the same speed as that of the circumferenceof the. cylinder A, the shaft h, with its wires 'm m, also revolving inthe direction pointed ont.

The size to-bc converted, into glue is introduced while in a fluidcondition into the trough C, in which the cylinder A revolves. EThe sizeadheres to the cool surface of the'cylinder,l and is carried round by`the same, until it arrives at the endless apron ll, onto which it passesin the conditionn of a broad, coutinuons, and gelatinized sheetythecoolsurface of the cylinder having reducedl it.to this condition.

To facilitate the removal 'of this sheet from the cylinder, a knife, q,may.be' ntroduced at the point shown in fig. 1, this'knife being'so-formed and situated as to direct the sheetonto the endless aprolrF,by which it is carried to the vel-tical wires p, which cut the sheetinto strips,"the latter passing onto the endless apron I, and beneath'the revolving wires m, which sever the strips transversely.

The square-strips of gelatinized size thus produced are now in acondition to he placed on the usual net, and subjected to that hardeningprocess which converts them into glue. l

The old mode of obtaining these desired thin strips of gelatlnized sizewas to first cast the hot liquid size into long troughs, and after itwas reduced, by cooling, to a proper condition, thegelatinized size wascut into slabs, and these were removed from the trough and cut by wiresinto the required strips, all

'these operations being performedby manual labor.

All that. is necessary to demonstrate the importance of my invention asa labor-saving process is to compare it with the old mode' referred to.

Itiis important that the size contained in the trough should bemaintained as cool as possible.

In order to do this I cause the icc-water to be with drawn from theinterior of the vcylinder A, through the pipe d, thence through thezigzag pipeD, in the bottom of the trough, and thence through the piped', to any suitable exhausting mechanism. The size in the trough is thusexposed to the coolsuiface of thev pipe D.

In order-that the sheet of size,as it is carried by the endless apron F,may be hardened as fast Vas possible, and reduced to an appropriatecondition for being severed by the wires, I, in some cases, cover thesaid apron with a box, of which the dotted lilies t and t', ti". 2,represent the sides, and the dotted llne n,`iig. 1, represents the top.

I introduce a blast ot' cold air into this box, he neatli'the apron,through the meshes of which the ah' passes to the sheet of gelatinizedsize, and, hardening the same, reduces it to thebcst condition for beingcut by the wires p.

It may be remarked here that vthe surface of the v cylinder A should beperfectly smooth; it may, for

instance, be made ot' iron or copper, or tinned plate,` or have anenameled surface. v

The main feature of my invention, namely, the formation of a continuoussheet of gelatiniz'ed size,

muy be carried into 'effect wit-hout the aid ot' the roll-4 er A.

In drawing No. 2 are'two diagrams illustrating lnodllled apparatus foreffecting this purpose, and in "these diagrams, -M and M represent tworollers,

round which passes, in the direction ot the arrow, the endless apron N.

Abm'e the roller M is a spout, B, down which partlully gelatiuized orsemi-fluid size iscaused to iiow onto the apron, on which the sizespreads laterally, thus forming a sheet of'size Iwhich, by the time ithatches the roller M, if the apron be long enough,

wlll be suiciently gelatinized to' be cut by wires.

The apron should be made ot a rubber fabric, or

of -oil-cloth, or of other textile fabric, sized and pol- 3. Thecombination with a revolving cylinder, A, l

containing a freezing mixture, of a trough or vessel,

C, containing size.

4 Cooling pipes D, arranged in the trough G, in combination with anysuitable exhausting apparatus, by which the ice-water in the cylindermay be caused to circulate through the said pipes D.

5. The combination of the cylinder A with an end,- less apron, F, ot'wire ganze` (i. lheknit'e q, arranged in respect to the roller f',

and apron F, substantially as described.

7 The combination of the said endless apron Fand wires p.

8. The combination of' the rotating wires m m with the endless apron IIn testimony whereof I have signed luy name to this speeitication in thepresence of two subscribing witnesses.

WM. ADAMSON.

Witnesses: I

WM. A. STEEL, W. J. 1t. DELANY.

